-
Williamson, N.J.: Deriving a thesaurus from a restructured UDC (1996)
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- Abstract
- The derivation of a thesaurus from a new schedule for UDC class 61 Medical Sciences which has been restructured into a faceted classification system using the framework provided by the Bliss Bibliographic Classification. The resulting thesaurus is intended to serve as a tool for indexing and searching but will also be the index to the 61 class itself. The background for the research is briefly described. The sources and methods used to select the descriptors and define their relationships are discussed. Problems are identified and some solutions proposed
-
¬3rd Infoterm Symposiums Terminology Work in Subject Fields, Vienna, 12.-14.11.1991 (1992)
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- Content
- Enthält 47 Beiträge den Schwerpunkten der Tagung: Biology and related fields - Engineering and natural sciences - Medicine - Information science and information technology - Law and economics - Social sciences and humanities - Terminology research and interdisciplinary aspects; darunter: OESER, E. u. G. BUDIN: Explication and representation of qualitative biological and medical concepts: the example of the pocket knowledge data base on carnivores; HOHENEGGER, J.: Specles as the basic units in taxonomy and nomenclature; LAVIETER, L. de, J.A. DESCHAMPS u. B. FELLUGA: A multilingual environmental thesaurus: past, present, and future; TODESCHINI, C. u. G. Thoemig: The thesaurus of the International Nuclear Information System: experiences in an international environment; CITKINA, F.: Terminology of mathematics: contrastive analysis as a basis for standardization and harmonization; WALKER, D.G.: Technology and engineering terminolgy: translation problems encountered and suggested solutions; VERVOOM, A.J.: Terminology and engineering sciences; HIRS, W.M.: ICD-10, a missed chance and a new opportunity for medical terminology standardization; THOMAS, P.: Subject indexes in medical literature; RAHMSTORF, G.: Analysis of information technology terms; NEGRINI, G.: Indexing language for research projects and its graphic display; BATEWICZ, M.: Impact of modern information technology on knowledge transfer services and terminology; RATZINGER, M.: Multilingual product description (MPD): a European project; OHLY, H.P.: Terminology of the social sciences and social context approaches; BEAUGRANDE, R. de: Terminology and discourse between the social sciences and the humanities; MUSKENS, G.: Terminological standardisation and socio-linguistic diversity: dilemmas of crosscultural sociology; SNELL, B.: Terminology ten years on; ZHURAVLEV, V.F.: Standard ontological structures of systems of concepts of active knowledge; WRIGHT, S.E.: Terminology standardization in standards societies and professional associations in the United States; DAHLBERG; I.: The terminology of subject fields - reconsidered; AHMAD, K. u. H. Fulford: Terminology of interdisciplinary fields: a new perspective; DATAA, J.: Full-text databases as a terminological support for translation
-
Pollard, R.: ¬A hypertext-based thesaurus as a subject browsing aid for bibliographic databases (1993)
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- Abstract
- Part of a special issue on hypertext and information retrieval. Conventional information retrieval systems provide little support for browsing. Browsing is the major method of searching in hypertext system but users can become disoriented even when browsing small information space. If hypertext is to be used to support browsing in bibliographic databases navigational assistance will be required. Examines the role of thesauri as navigational aids for subject domains of Bibliographic databases. Presents the design of an experimental hypertext-based browsing inference for a thesaurus and its implementation using a commercially available hypertext program. Examines strategies for linking the thesaurus to a database
- Source
- Information processing and management. 29(1993) no.3, S.345-357
-
Crouch, C.J.: ¬An approach to the automatic construction of global thesauri (1990)
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- Abstract
- The benefits of a well constructed thesaurus to an information retrieval system have long been recognised by both researchers and practitioners in the field. Examines both early and current approaches to automatic thesaurus construction and describes an approach to the automatic generation of global thesauri based on the term discrimination value model of Salton Yang, and Yu and on an appropriate clustering algorithm. This method has been implemented and applied to 2 document collections. Preliminary results indicate that this method, which produces improvements in retrieval performance in excess of 10 and 15% in the test collections, is viable and worthy of continued investigation.
- Date
- 22. 4.1996 3:39:53
-
Merilainen, O.: Descriptor equivalence in the context of bilingual indexing (1997)
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- Abstract
- Discusses the concept of descriptor equivalence, with its 2 subcomponents of dictionary equivalence and indexing equivalence, in the context of the compatibility of differnt thesauri used in bilingual indexing. In multilingual indexing and searching, the equivalence relationship between terms means either that all equal terms are descriptors or that only one of the terms is selected for the descriptor and users are directed with USE refrences to use it instead of the other potential terms. Discusses these issues with particular reference to the LUASPORT study: a study of the compatibility of the Finnish language sports thesaurus (LUAS) with the Canadian Sport Thesauri (SPORT) in terms of compatibility of subject descriptors. In LUASPORT, LUAS was the source thesaurus and SPORT was the target thesaurus
-
Conlon, S.P.N.; Evens, M.; Ahlswede, T.: Developing a large lexical database for information retrieval, parsing, and text generation systems (1993)
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- Abstract
- Shows that it is possible to construct a lexical database by combining material from a number of machine-readable sources. Discusses the kind of lexical information required for applications in information retrieval and in other natural language processing areas, such as database interfaces and automatic filing systems. Describes the organization of the lexical database which is stored in an Oracle relational database management system and the design of the tables that comprise the database. In addition to the traditional alphabetic listing, access is privided from roots to derived forms and from derived forms to roots, and also through lexical and semantic relations between words, so that the database functions as a thesaurus as well as a dictionary. The database is designed to be open-ended and self-defined. Every attribute of every table is defined in the database itself. The lexical database can easily be extended through an SQL forms interface that facilitates additions to the tables
- Source
- Information processing and management. 29(1993) no.5, S.415-431
-
Pastor, J.A.; Saorin, T.: ¬Un interfaz hipertexto para un sistema de gestion de tesauros (1996)
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- Abstract
- Shows the possibilities that exist to create a basic hypertext interface for a thesaurus management system. The project has been built in 3 stages: conceptual data model for the thesaurus; development of the management tools, that is, the thesaurus management system; and the hypertext interfaces. The system has been developed on Windows and combines the power of relational database management systems and the navigational flexibility of Guide, a hypertext shell. presents 2 interface models. Concludes that hypertext interfaces improve management, and open a new path for knowledge organization research
- Footnote
- Übers. des Titels: A hypertext interface for a thesaurus management system
-
Gagnon-Arguin, L.: ¬L'¬analyse documentaire 1 : les thesaurus en France (1995)
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- Abstract
- First in a series of articles on archival description. Describes the experience of French archives in the creation of thesauri with special emphasis on the following: the context within which French expertise in the description and analysis of archival documents was developed; the 3 principle thesauri currently used in French archives for the description of public administration documents, Vocabulaire de Varenne, Thesaurus W, and Priam 3; and some considerations for archivists in Quebec
-
Skrubbeltrang, C.: Anvendelse af brugerassociationer ved tesauruskonstruktion (1993)
0.01
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- Abstract
- Examines how far automation cluster analysis and association testing are relevant methods for smaller libraries in construction of search thesauri. Using WORDSTAR, a simple form of cluster analysis was tested, with satisfactory results in that the index terms formed clusters of a suitable size. The association test was used to elicit from users' natural language terms which can be used in the search thesaurus as entrance vocabulary. The test showed that users associated very differently in relation to the same stimuli words, with low overlap with terms used in the system's indexing. The results confirmed the need for better feedback. Concludes that while neither method can be used alone, a search thesauri which combine terms from the indexes and from users can be a powerful tool
-
Rahmstorf, G.: Bedeutungsdefinition und Wortumfeld (1993)
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- Series
- Sprache, System und Tätigkeit; 10
-
Hudon, M.: ¬A preliminary investigation of the usefulness of semantic relations and of standardized definitions for the purpose of specifying meaning in a thesaurus (1998)
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- Abstract
- The terminological consistency of indexers working with a thesaurus as indexing aid remains low. This suggests that indexers cannot perceive easily or very clearly the meaning of each descriptor available as index term. This paper presents the background nd some of the findings of a small scale experiment designed to study the effect on interindexer terminological consistency of modifying the nature of the semantic information given with descriptors in a thesaurus. The study also provided some insights into the respective usefulness of standardized definitions and of traditional networks of hierarchical and associative relationships as means of providing essential meaning information in the thesaurus used as indexing aid
-
Chen, H.; Yim, T.; Fye, D.: Automatic thesaurus generation for an electronic community system (1995)
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- Abstract
- Reports an algorithmic approach to the automatic generation of thesauri for electronic community systems. The techniques used included terms filtering, automatic indexing, and cluster analysis. The testbed for the research was the Worm Community System, which contains a comprehensive library of specialized community data and literature, currently in use by molecular biologists who study the nematode worm. The resulting worm thesaurus included 2709 researchers' names, 798 gene names, 20 experimental methods, and 4302 subject descriptors. On average, each term had about 90 weighted neighbouring terms indicating relevant concepts. The thesaurus was developed as an online search aide. Tests the worm thesaurus in an experiment with 6 worm researchers of varying degrees of expertise and background. The experiment showed that the thesaurus was an excellent 'memory jogging' device and that it supported learning and serendipitous browsing. Despite some occurrences of obvious noise, the system was useful in suggesting relevant concepts for the researchers' queries and it helped improve concept recall. With a simple browsing interface, an automatic thesaurus can become a useful tool for online search and can assist researchers in exploring and traversing a dynamic and complex electronic community system
-
Chmielewska-Gorczyca, E.: Tezaurus prawa Biblioteki Sejmowej (1996)
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- Abstract
- Describes the thesaurus that has been created at the Library of the Polish Parliament and is one element of the STEBIS system (System Tezaurusow Biblioteki Sejmowej). Discusses and illustrates with examples the rules of selecting vocabulary terms. The main aim is to map the contents of Polish and foreign documents and to preserve compatibility with the EUROVOC Thesaurus of the European Parliament. Emphasizes the need for the systematization of terms within one logical setup, with regard to the alphabetical and systematic part of the thesaurus and the multilingual character of the EUROVOC Thesaurus
-
Jones, S.: ¬A thesaurus data model for an intelligent retrieval system (1993)
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- Abstract
- This paper demonstrates the application of conventional database design techniques to thesaurus representation. The thesaurus is considered as a printed document, as a semantic net, and as a relational database to be used in conjunction with an intelligent information retrieval system. Some issues raised by analysis of two standard thesauri include: the prevalence of compound terms and the representation of term structure; thesaurus redundancy and the extent to which it can be eliminated in machine-readable versions; the difficulty of exploiting thesaurus knowledge originally designed for human rather than automatic interpretation; deriving 'strength of association' measures between terms in a thesaurus considered as a semantic net; facet representation and the need for variations in the data model to cater for structural differences between thesauri. A complete schema of database tables is presented, with an outline suggestion for using the stored information when matching one or more thesaurus terms with a user's query
-
Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998)
0.01
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- Abstract
- In this article, we report research on an algorithmic approach to alleviating search uncertainty in a large information space. Grounded on object filtering, automatic indexing, and co-occurence analysis, we performed a large-scale experiment using a parallel supercomputer (SGI Power Challenge) to analyze 400.000+ abstracts in an INSPEC computer engineering collection. Two system-generated thesauri, one based on a combined object filtering and automatic indexing method, and the other based on automatic indexing only, were compaed with the human-generated INSPEC subject thesaurus. Our user evaluation revealed that the system-generated thesauri were better than the INSPEC thesaurus in 'concept recall', but in 'concept precision' the 3 thesauri were comparable. Our analysis also revealed that the terms suggested by the 3 thesauri were complementary and could be used to significantly increase 'variety' in search terms the thereby reduce search uncertainty
-
Lopez-Huertas, M.J.: Thesaurus structure design : a conceptual approach for improved interaction (1997)
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- Abstract
- The need for thesauri to help users in their search for information in online information systems has been discussed for several decades. Many wide-ranging contributions have been made to solve this problem. Nevertheless, investigation is needed to design a thesaurus structure based on what is relevant for users and generators of information within a specific subject domain. Explores the possibility of creating a thesaurus from the cognitive viewpoint. This approach is based on a system that organizes its representation of knowledge or its classification as closely as possible to the authors' and users' images of the subject domain with the objective of increasing the interaction between users and texts, and thus the communication in a given information retrieval system. Discourse analysis is used as a main method to identify the categories and its relevance for building such a structure is discussed
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Pollard, R.: Hypertext presentation of thesauri used in on-line searching (1990)
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- Abstract
- Explores the strengths and limitations of hypertext for the online presentation of thesauri used in information retrieval. Examines the ability of hypertext to support each of 3 common types of thesaurus display: graphic, alphabetical, and hierarchical. Presents a design for a hypertext-based hierarchical display that addresses many inadequacies of printed hierarchical displays. Ullustrates how the design might be implemented using a commercially available hypertext system. Considers issues related to the implementation and evaluation of hypertext-based thesauri
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Davies, R.: Thesaurus-aided searching in search and retrieval protocols (1996)
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- Abstract
- Open system protocols for search and retrieval have not provided explicit ways in which to implement thesaurus-aided searching. A number of different approaches within the existing protocols, as well as a proposed service, are evaluated. A general approach to implementing thesaurus-aided searching, particularly during consultation of a thesaurus, requires an entirely new service, whose main features are described
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Diaz, I.: Semi-automatic construction of thesaurus applying domain analysis techniques (1998)
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- Abstract
- Describes a specific application of domain analysis to the construction of thesauri to exploit domain analysis' ability to construct valid domain representations and determine fuzzy limits that normally define specific domains. The system employs a structure, called a Software Thesaurus (developed from a descriptor thesaurus), as a repository to store the information regarding specific domains. The domain representation is constructued semi automatically and can be used as a means of semiautomatic thesaurus generation
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Rorvig, M.E.; Turner, C.H.; Moncada, J.: ¬The NASA Image Collection Visual Thesaurus (1999)
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- Abstract
- This article is an unpublished manuscript of a paper presented at the 17th Annual Mid-Year Meeting of the ASIS at Ann Arbor, Mich., May 15-18, 1988. It is the first recorded proposal for visual support of indexing. The system itself was built and developed at NASA in the Johnson space Center Image Archives from 1989 to 1992
